﻿// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
// 
// Copyright (c) 2012, Dr. Masroor Ehsan
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//    * Redistributions of source code must retain the above copyright
//      notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above copyright
//      notice, this list of conditions and the following disclaimer in the
//      documentation and/or other materials provided with the distribution.
//    * Neither the name of the <organization> nor the
//      names of its contributors may be used to endorse or promote products
//      derived from this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// 
// $Id: OrderableTestCatalog.cs 12 2012-01-27 06:11:46Z masroore@gmail.com $
// 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

namespace LWObjects
{
    public class OrderableTestCatalog : SortedDictionary<string, OrderableTest>, IAlaSerializable
    {
        private static readonly OrderableTestCatalog _Instance = new OrderableTestCatalog();

        private OrderableTestCatalog()
        {
        }

        public static OrderableTestCatalog Instance
        {
            get { return _Instance; }
        }

        #region IAlaSerializable Members

        public string Serialize()
        {
            var sb = new StringBuilder();

            foreach (var test in Values)
            {
                sb.AppendLine(test.Serialize());
            }

            return sb.ToString();
        }

        public void Deserialize(string data)
        {
            var test = new OrderableTest();
            test.Deserialize(data);
            Add(test.TestId, test);
        }

        public void Reset()
        {
            Clear();
        }

        #endregion

        public OrderableTest FindTestById(string id)
        {
            OrderableTest result;
            TryGetValue(id, out result);
            return result;
        }

        public int GetLastTestNumForPrefix(string prefix)
        {
            var re = new Regex(string.Format(@"{0}(?<num>\d+)", prefix));
            var lastNum = 0;
            foreach (var test in Values)
            {
                var match = re.Match(test.TestId);
                if (match.Success)
                {
                    int curNum;
                    int.TryParse(match.Groups["num"].Value, out curNum);
                    if (curNum > lastNum)
                        lastNum = curNum;
                }
            }

            return lastNum;
        }

        public IEnumerable<OrderableTest> GetTestsInLab(string lab)
        {
            var tests = from t in Values
                        where (string.Compare(t.Lab, lab, StringComparison.OrdinalIgnoreCase) == 0)
                        select t;
            return tests;
        }
    }
}